Pollard's architectural drawings for churches, and residential and commercial buildings, located largely in New York and New Jersey, many undated, circa 1830s. Included are drawings for St. Paul's Protestant Episcopal Church, Petersburgh, Va., built, 1838, and destroyed in a fire, 1854; a prison, probably submitted by Pollard to the 1835 competition for the New York Hall of Justice. Also, a broadside, undated, describing the projected Washington Monument, New York City; a letter Pollard from Charles C. Taber, 1850, describing his plans for four houses on three adjacent lots on 25th Street, with sketched plans on verso; and two trade cards of C. Pollard's Ohio Fire Proof Mineral Paint attached.

Included are approx. 7,000 architectural drawings, circa 1910s-1940s, for projects designed by Delano & Aldrich, including La Guardia Airport in New York; several buildings at Yale University; Willard Straight Hall at Cornell University; various buildings at United States Military Academy at West Point; the National Gallery of Art in Washington, D.C.; alterations to the White House; numerous residences throughout the New York City metropolitan area, particulary the Dwight W. Morrow house in Englewood, N.J., the J.A. Burden house in Syosset, N.Y., and the Willard D. Straight house on East 92nd Street in New York City; and various schools, churches, and residential structures throughout the United States. Rendered competition drawings are included. Drawings made by William Adams Delano while a student at the Ecole des Beaux-Arts, Paris, circa 1900. Also, 6 boxes of photographs of Delano & Aldrich completed projects, chiefly residential structures.

Included are 19 original architectural drawings and photographs and prints of drawings by Withers. Among these are designs for the Van Schaick Free Reading Room (now the Huntington Free Library and Reading Room), Bronx, N.Y.; reredos proposed for the Church of the Transfiguration, New York City; Chapel of the Good Shepherd on Blackwells Island (now Roosevelt Island), N.Y.; a competition design for the Cathedral of St. John the Divine, New York City; St. Thomas Episcopal Church in Hanover, N.H.); and drawings by others, including Sullivan Jones and Rowland Plumbe. This collection also includes manuscript copies of three letters from Withers to his mother written at sea in 1852 and describing his trip to America.

Sketchbooks, 1895-1903; sketches, 1894-1896, made while Magonigle was travelling in Europe on Rotch Travelling Scholarship; graphic designs, 1902-1919; rendered competition drawings for government buildings, circa 1907-1920, and memorial structures, circa 1910-1930; photographs of Magonigle's architectural drawings, memorial structures, monuments, and other architectural work, much of it located in New York City, circa 1900s-1930s. Among projects represented in the collection are the Gates Avenue Courthouse, Brooklyn, N.Y.; the Firemen's Memorial, the Robert Fulller Memorial, and the National Watergate Memorial in New York City's Riverside Park; the Liberty Memorial in Kansas City, Mo.; the Isaac Guggenheim house in Port Washington, N.Y.; numerous additions and alterations for the Franklin Murphy mansion in Mendham, N.J.; and the United States Embassy compound in Tokyo, Japan. Also, drawings by other architects including Hugh Ferriss, Thomas Rogers Kimball, Hubert George Ripley, and I.W. Taber, that were presented to Magonigle. Also included are drawings, circa 1910s-1940s, by Magonigle's wife, painter and designer Edith Marion Day; photographs of Day and Magonigle; manuscripts of lectures, literary works, and other writings by Magonigle; and ephemera.

Harold Van Buren Magonigle was a New York-based architect, graphic designer, painter and sculptor. Magonigle married artist Edith Marion Day in 1900. Edith Magonigle was a painter and muralist who served as President of the Society of Women Painters and Sculptors. Edith was a primary collaborator of Harold Van Buren Magonigle in both the decoration and creation of buildings designed by his practice. He was widely known as an architect of memorial structures including the Firemen's Memorial on Riverside Drive and the Liberty Memorial in Kansas City. Other prominent commissions include the Isaac Guggenheim house in Port Washington, New York and the United States Embassy in Tokyo, Japan.

Included are drawings made by Avery while studying under Jules Andre at the Ecole des Beaux-Arts, Paris, and sketchbooks containing sketches made in Paris and on excursions, 1872-1879. Architectural drawings and photographs of architectural drawings for proposed or executed residential and commercial buildings, churches, art galleries, monuments, and other structures, 1880s; competition drawings for public monuments, 1883-1887; experimental studies, 1885, for the pedestal of Frederic-Auguste Bartholdi's Statue of Liberty; and 39 studies and finished drawings, 1888-1890, made for a competition for a memorial for Ulysses S. Grant which he did not win. Also, magazine articles by or about Avery and his work, 1883-1890; obituaries and death announcements, 1890; miscellaneous photographs, certificates, and papers; and invitations, clippings, illustrations, and photographs, circa 1892-1894, relating to the founding of the Avery Architectural Library at Columbia University.

Architectural drawings for projects designed by Howells & Stokes, and by Stokes working independently, particularly, residence for Stokes' father, financier and philanthropist Anson Phelps Stokes (1838-1913) at Collender's Point, Darien, Conn., 1902-1905; a house for himself"High-Low House" Greenwich, Conn., 1901-1917; house for his wife at Indian Harbor, Greenwich, Conn., 1927, undated; outdoor pulpit for the Cathedral of St. John the Divine, New York, 1912-1915 (built in 1916); proposal for an apartment house at 953 Fifth Ave., New York, 1924-1926; competition entry for the Chicago Tribune Tower, undated (the competition, 1922, was won by Raymond Hood); and St. Paul's Chapel, Columbia University, New York, 1904-1930. Also, miscellaneous designs; competition entries; designs for unidentified buildings; designs for apartment buildings and housing projects; photographs of buildings by Stokes; landscape designs done by the Olmsted Brothers firm for Stokes for an unidentified project or projects. Also included are documents relating to the planning, construction, and, later, repairs and the addition of memorial tablets to St. Paul's Chapel, Columbia University, which was designed by Howells & Stokes and built in 1907. Correspondence, with related memoranda, estimates, specifications, accounts, contracts between Howells and Stokes or Stokes with Columbia University officials, and contractors and suppliers date from 1903 to the 1930s.

Photographs of buildings located in Germany that were designed by Schneider. Miscellaneous architectural drawings, some done for architectural competitions, are also included.

Architectural drawings and photographs of buildings designed by the firm dating approximately from its founding to the 1950s. Among those represented are buildings at the World's Columbian Exhibition, Chicago, 1893; Pennsylvania Railroad Station, New York, 1906-1910; restoration, 1903, of the White House, Washington, D.C.; buildings at Columbia University's Morningside Heights campus, New York; Boston Public Library, Boston, Mass.; E.W. Morgan mansion; Municipal Building, N.Y.; Col. Elliott Shepherd House, Scarborough, N.Y.; buildings at Amherst College, Amherst, Mass.; Bellevue Hospital, New York; various New York City residences; and others. Also included are competition drawings for the New York Public Library; miscellaneous drawings and sketches; photographs of the partners and of other members of the firm; lists of the firm's work; clippings of articles about the firm; lists of the firm's employees; billing records, 1953-1955; account books, 1940s-1950s; bank books, 1895-1955; award certificates; and other office miscellany.